#include<iostream>
#include<algorithm>
#include<cstdio>

using namespace std;

int main() {

    int a, b, c;
    cin >> a >> b >> c;
    if (b > c)swap(b, c);
    if (a > b)swap(a, b);
    if (b > c)swap(b, c);

    cout << a << b << c << endl;
    return 0;

}




